[DS-1193] Rename the legacy demo homepage to 'Legacy Home Page' and add alias to this page

Author: Alexey

modules/openy_demo_nlanding/config/install/migrate_plus.migration.openy_demo_node_landing.yml

@@ -14,8 +14,8 @@ source:
   data_rows:
     -
       id: homepage
-      title: 'YMCA Website Services'
-      alias: ''
+      title: 'Legacy Home Page'
+      alias: '/legacy-home-page'
       layout: one_column
       header_content_ids:
         -

modules/openy_demo_nlanding/config/install/migrate_plus.migration.openy_demo_node_landing_extended.yml

@@ -14,8 +14,8 @@ source:
   data_rows:
     -
       id: homepage
-      title: 'YMCA Website Services'
-      alias: ''
+      title: 'Legacy Home Page'
+      alias: '/legacy-home-page'
       layout: one_column
       header_content_ids:
         -

modules/openy_demo_nlanding/config/install/migrate_plus.migration.openy_demo_node_landing_standard.yml

@@ -14,8 +14,8 @@ source:
   data_rows:
     -
       id: homepage
-      title: 'YMCA Website Services'
-      alias: ''
+      title: 'Legacy Home Page'
+      alias: '/legacy-home-page'
       layout: one_column
       header_content_ids:
         -